05-29-2008
Quote:
Originally Posted by
zaxxon
The [485] is the line number of the shell script, where the problem is occuring. It's calling some program that tries to allocate memory or write into memory and there seems something is getting wrong.
Actually at line 485 its simply reading the name of table entered by user and nothing else.
This error occurs whenever I include the code to match Primary key data.
If I remove this code it works fine.
Please let me know how to get thr this
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LEARN ABOUT DEBIAN
modbus_rtu_get_serial_mode
MODBUS_RTU_GET_SERIA(3) Libmodbus Manual MODBUS_RTU_GET_SERIA(3)
NAME
modbus_rtu_get_serial_mode - get the current serial mode
SYNOPSIS
int modbus_rtu_get_serial_mode(modbus_t *ctx);
DESCRIPTION
The modbus_rtu_get_serial_mode() function shall return the serial mode currently used by the libmodbus context:
MODBUS_RTU_RS232
the serial line is set for RS232 communication. RS-232 (Recommended Standard 232) is the traditional name for a series of standards for
serial binary single-ended data and control signals connecting between a DTE (Data Terminal Equipment) and a DCE (Data
Circuit-terminating Equipment). It is commonly used in computer serial ports
MODBUS_RTU_RS485
the serial line is set for RS485 communication. EIA-485, also known as TIA/EIA-485 or RS-485, is a standard defining the electrical
characteristics of drivers and receivers for use in balanced digital multipoint systems. This standard is widely used for
communications in industrial automation because it can be used effectively over long distances and in electrically noisy environments.
This function is only available on Linux kernels 2.6.28 onwards and can only be used with a context using a RTU backend.
RETURN VALUE
The modbus_rtu_get_serial_mode() function shall return MODBUS_RTU_RS232 or MODBUS_RTU_RS485 if successful. Otherwise it shall return -1 and
set errno to one of the values defined below.
ERRORS
EINVAL
The current libmodbus backend is not RTU.
AUTHORS
The libmodbus documentation was written by Stephane Raimbault <stephane.raimbault@gmail.com[1]>
NOTES
1. stephane.raimbault@gmail.com
mailto:stephane.raimbault@gmail.com
libmodbus 3.0.3 05/26/2012 MODBUS_RTU_GET_SERIA(3)